The inscription on the architrave indicates that this monumental gateway to the Roman Agora was dedicated by the people to Athena Archegetis (the Leader) and constructed with donations from Julius Caesar and later from Augustus. The marble propylon; which was built sometime in the archonship of Nicias (11-9 BC); stands at the western entrance to the commercial marketplace; a large peristyle court with unfluted Ionic columns that sheltered a row of shops along the eastern side; where there was similar but smaller gateway next to the Temple of the Winds. The view above shows a spur wall behind one of the corner column terminating in an anta.IN THE PHOTO: